The 50-Metre Rule: Why We Built Privacy Into Go Rocco

When we started building Go Rocco, one of the very first questions we had to answer was deceptively simple: how much should people know about where other dogs are?

The obvious answer - the one most apps default to - is "as much as possible." Show the exact location. Update it in real time. Make the map as precise as a sat-nav. But the more we thought about it, the more uncomfortable that felt. Because we weren't tracking parcels or taxis. We were tracking people walking their dogs.

And people deserve privacy.

Why precision isn't the point

Go Rocco's live map shows you that there are dogs nearby and tells you about their temperament. That's the useful information. You don't need to know that a reactive German Shepherd is standing outside number 42 Maple Road. You just need to know there's a dog ahead who might need space, so you can adjust your route.

That distinction - between useful awareness and exact surveillance - is what led us to the 50-metre rule. Every dog's location on the Go Rocco map is deliberately fuzzed to a 50-metre approximate zone. You'll see them in the area, not at the address.

It sounds like a limitation. We think it's a feature.

How the 50-metre radius works

When your phone sends location data to Go Rocco, we don't store or display the precise GPS coordinates. Instead, the app rounds the position to a generalised zone. On the map, you'll see a coloured circle representing the dog's approximate area - not a pin marking their exact spot.

This means:

• You can see dogs are nearby and plan your walk accordingly
• You can read their temperament (green, amber, or red) before you encounter them
• You can't follow someone home or work out their daily routine from the map
• You can't identify someone's exact location from their dog's profile

The 50-metre radius gives you everything you need to make informed decisions on your walk, without giving anyone the tools to do anything creepy.

How GDPR and UK data protection shaped our design

We're a UK-based company, and we take data protection seriously. The UK GDPR and Data Protection Act 2018 set a high bar for how personal data - including location data - must be handled. Location data is considered personal data under these regulations, and precise location tracking raises significant compliance concerns.

But our approach wasn't born out of legal obligation alone. The principles behind GDPR - data minimisation, purpose limitation, privacy by design - aligned perfectly with what we already believed. The Information Commissioner's Office (ICO) champions these principles, and we follow their guidance closely. You should only collect the data you need, use it only for its stated purpose, and build privacy into the architecture from day one.

That's exactly what the 50-metre rule does. We don't collect precise data and then blur it on the front end. The fuzziness is baked into how we process and store the data. We simply don't hold the level of precision that would allow exact tracking.

"Privacy by design means the protection isn't a feature you bolt on - it's a constraint you build around."

How other apps get it wrong

Many pet tracking and social apps show exact, real-time locations. Some even let you view historical walking routes - where someone walked, when, and for how long. For a tracker attached to a dog's collar, that might make sense (you're tracking your own pet). But for a community map showing other people's dogs? That's a different conversation entirely.

Precise tracking in a social context creates risks that most app developers don't think about:

• Stalking and harassment: Someone could use real-time dog locations to track a person's movements
• Burglary risk: If your map shows you're out walking, your home is empty
• Dog theft: Sadly, dog theft remains a serious concern in the UK, and broadcasting your dog's exact location helps no one but thieves
• Domestic abuse: Survivors fleeing abusive situations could be tracked through their pet's location data

These aren't hypothetical concerns. They're real-world risks that informed our engineering decisions from the very beginning.

The opt-in philosophy

The 50-metre rule is just one part of our broader privacy approach. Everything in Go Rocco is opt-in. Your dog only appears on the map when you choose to share. You control what information is visible on your profile. And you can go invisible at any time - one tap, and you're off the map entirely.

We don't believe in defaulting to "share everything" and making people hunt through settings to turn things off. The default should always be private, with clear, simple options to share more if you want to.

This matters because not every dog owner's situation is the same. Some people walk in remote areas and want to know if there's anyone around. Others live in busy cities and just want a heads-up about reactive dogs on their street. Some are fostering rescue dogs and need to keep a low profile. The opt-in model respects all of those needs.

Privacy builds trust

We've found that privacy and community aren't at odds - they reinforce each other. When people know their location isn't being broadcast to the metre, they're more willing to participate. They're more likely to share their dog's temperament honestly, to engage with the map, and to recommend the app to friends.

Trust is the foundation of any community app. And trust starts with showing people you've thought carefully about their safety - not just their convenience.

The 50-metre rule isn't perfect. There are edge cases where you might wish you had more precision. But we'd rather err on the side of protecting our users than give anyone a reason to feel unsafe. That's a trade-off we're proud of.

What this means for you

As a Go Rocco user, you don't need to worry about any of this in practice. The app just works - you see dogs nearby, you see their temperament, and you make better decisions on your walk. The privacy layer is invisible because it's supposed to be.

But we think it's important to be transparent about why things work the way they do. Too many apps treat privacy as an afterthought or a compliance checkbox. We built Go Rocco around it.

Because every dog deserves a safe walk. And every owner deserves to feel safe too.